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360 running like crap

eagleeye762010-08-11 01:28:59 +0000 #1
Last fall her 08 Prarie 360 started not so good. Didn't matter if it was cold or warm it didn't want to start. When it finally start it wouldn't idle at all. Would stall if you didn't get ur butt in gear and give it some gas. When coming off the throttle it would stall. It also seemed to have some power loss. So I cleaned the filter changed the plug and cleaned the carb. Still same prob. So it went to the dealer for an exhaust valve adj.

He said he loosened them 2 full turns. I think thats a lot. It now starts and idles good. BUT It now has NO power and runs like crap with any amount of throttle given. Tried to load it in the truck and wouldn't go up the ramps w/o a running start. The dealer saw this power loss and hesitation and did a comp. test and got 100 he said it should be 118 to 180. He believes the valves beat themselves into the head and he scoped it and said there is a hot spot on the piston. Not good. He says the top end needs to be redone. Not cheap. Sorry about the non BF question but I was hoping for some input. I would greatly appreciate it.


Eight2010-08-11 01:36:08 +0000 #2
Is it still under warranty, if so I'd think it would be covered under that. If not I don't think theres much you can do besides eat the cost.
eagleeye762010-08-11 01:51:08 +0000 #3
Not under warranty Do the problems sound consistant with the comp results and what would the hot spot be from? There was an exaust leak at the head / pipe.
eagleeye762010-08-11 01:44:29 +0000 #4
Finally took it to the shop bc I don't know crap about fixing the internals of an engine. Found the problem... cylinder wall not scratched but gouged bad, the gap between the piston and the wall is about the thickness of the tip of a pen. Even I know thats bad. Over $1300 bad. Not like that but she needs to play in the mud too.
Roboquad2010-08-11 02:00:08 +0000 #5
machine shop can rework that for way less $$$ new rings and off you go around $200 in parts etc...
eagleeye762010-08-11 02:11:08 +0000 #6
Now the carb needs to be rebuilt. I think its bc she swamped it once or twice then rolled it i a mud/sand puddle at the end of last year. I guess I will have to try to figure out how to snork it before she does it again.

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